JP2014073633A - Laminate cellular sheet with paper material, and housing bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminate cellular sheet with a paper material in which a pressing-forced trace of a cap film is made not to remain on a surface of a housing object, a concealment property is excellent so that a housing object may be hardly viewed from outside, and writing and printing can be performed on a surface; and a housing bag.SOLUTION: A laminate cellular sheet with a paper material includes: a sheet body 2 having a lot of air bubbles that perform hollow evagination; and a mineral powder inclusion paper 3 that is laminated on one side or both sides of the sheet body 2, where the mineral powder inclusion paper 3 is a paper that is formed to include powder of a mineral as a main component, and a synthetic resin.

Description

  The present invention uses a laminated bubble sheet with paper material in which a paper material mainly composed of mineral powder is laminated on the surface of a laminated bubble sheet having a large number of independent bubbles, and the laminated bubble sheet with this paper material. It is related with the storage bag formed.

A laminated cell sheet is a sheet material made of polyethylene film in which a large number of bubbles that swell in a hollow shape are formed. As a sheet material having a cushioning property (impact resistance) due to the buffering action of a large number of cells, It is used in various fields as materials and packaging materials.
Here, the laminated bubble sheet usually includes a two-layer bubble sheet and a three-layer bubble sheet. The two-layered bubble sheet is a two-layered bubble sheet comprising a cap film in which a large number of caps that swell in a hollow shape are formed, and a back film laminated on the cap opening side of the cap film. The layered cell sheet is a three-layered bubble sheet in which a liner film is further laminated on the cap bulging side of the cap film of the two-layered bubble sheet, each of which is a large number of hollow cells formed by the cap film and the back film. Has good cushioning properties (impact resistance), and is widely used as packaging materials, cushioning materials and the like.

Recently, the laminated foam sheet is used as a packaging material because of its excellent impact resistance, light weight and flexibility, and easy folding, cutting and processing. In addition, the laminated bubble sheet may be processed and molded into a bag shape, an envelope shape or the like and used as a bag or container for storing articles.
In a storage bag in which a laminated bubble sheet is formed in a bag shape or an envelope shape, the articles stored in the bag are entirely covered with the laminated bubble sheet, so that they are effectively protected from dropping and impact from the outside. In addition to being excellent in safety and reliability in that damage to stored items is reliably prevented, packaging and packing can be completed simply by storing the target items etc. in a bag made of laminated bubble sheets. It is expected to be used as a bag material that is superior in both safety and convenience.

As a storage bag using this type of laminated bubble sheet, for example, proposed in Patent Document 1, “consisting of a bubble sheet, printed, having a curved welding surface, or formed by sewing. Product ".
The product described in Patent Document 1 is obtained by laminating a functional layer mainly composed of an ethylene-based copolymer on the surface of a laminated bubble sheet.
A product having such a structure is capable of printing a desired character or pattern on the surface of the functional layer, and can provide a product with high decorativeness by printing various designs. .

Japanese Patent No. 4844649

However, the storage bag formed using the laminated bubble sheet has the following situation.
As described above, the laminated bubble sheet includes a two-layer bubble sheet and a three-layer bubble sheet. When the storage bag is formed using the two-layer bubble sheet, the cap bulging side of the cap film is located inside the storage bag. When facing, a round trace of the pressed cap may remain on the surface of the stored item stored in the storage bag.
Here, it is considered that the reason why such a round trace remains is that, for example, low density polyethylene is used as a material for the cap film, and the low molecular weight of the low density polyethylene is bleed out.
Therefore, even when a cap film is formed of such a material, a proposal of a technique for preventing a round trace from remaining on the surface of the stored item has been demanded.

Also, in the storage items stored in the storage bag, important information such as personal information is written on the surface, so it is difficult to prevent leakage of the information or to be seen by others. There are things that you want to keep secret until you open it.
However, when, for example, polyethylene is used as the material of the laminated bubble sheet, the laminated bubble sheet is transparent, and the storage bag formed by the laminated bubble sheet is also transparent. Then, since the stored item stored in the storage bag can be easily visually recognized from the outside, important information is leaked or a secret state cannot be secured.
Therefore, it has been desired to provide a storage bag with excellent concealment property that makes it difficult to visually recognize stored items from the outside.

Further, when a storage bag is used at home or the like, if the storage bag can be written freely on the surface, the storage bag can be effectively used under various circumstances.
For example, by describing the name of the stored item on the surface of a semi-transparent or opaque storage bag, the stored item can be easily identified by simply looking at the name written on the surface without opening the storage bag. .
Also, for example, when there are many identical items, such as medicines taken every day, subdivide them into a plurality of storage bags, and describe the date to use (take) on the surface of each storage bag. By setting it, you can choose what you should use (take) on the day without hesitation.
In this way, it is possible to provide a convenient storage bag by allowing writing on the surface of the storage bag freely.

Further, the storage bag is discarded when the storage function is reduced or disappears due to damage or the like.
Here, in recent years, it has been required to manufacture products using materials that do not contain harmful substances so that harmful substances are not discharged when incinerating garbage from households and businesses.
This desire is the same for the above-described storage bag, and it is desirable to form the storage bag from a material that does not produce harmful substances even when incinerated.

  The present invention has been considered in view of the above circumstances, and prevents concealment of the cap film from remaining on the surface of the stored item, and provides concealment so that it is difficult to visually recognize the stored item from the outside. It is an object of the present invention to provide a laminated bubble sheet with paper material and a storage bag that are made of a material that is improved and allows free writing by a user and that does not produce harmful substances even when incinerated.

  In order to achieve this object, a laminated bubble sheet with a paper material of the present invention includes a sheet body having a large number of bubbles that swell in a hollow shape, and a mineral powder-containing paper laminated on one or both sides of the sheet body. The mineral powder-containing paper is a paper that is formed of a mineral powder as a main component and containing a synthetic resin.

  Moreover, the storage bag of this invention is a storage bag formed in the bag shape, Comprising: The storage bag is set as the structure formed using said laminated | stacked bubble sheet with a paper material.

According to the laminated bubble sheet with paper material and the storage bag of the present invention, the storage bag is formed using the laminated bubble sheet with paper material on which the mineral powder-containing paper is laminated, and the mineral powder-containing paper is formed on the inner surface of the storage bag. Since the cap film does not come into direct contact with the surface of the stored item, it is possible to prevent the trace of pressing of the cap from remaining on the surface of the stored item.
Further, since the mineral powder-containing paper is translucent or opaque, it is difficult to visually recognize the stored item from the outside of the storage bag. Therefore, it is possible to provide a storage bag with excellent concealment.

Furthermore, the user can freely write on the surface of the laminated bubble sheet with paper on which the mineral powder-containing paper is laminated. Therefore, it is possible to provide an easy-to-use laminated bubble sheet with paper material and a storage bag that can be used effectively in various situations.
Moreover, since mineral powder-containing paper does not produce harmful substances even when incinerated, it can be safely disposed of as combustible waste.

It is a perspective view showing a schematic structure concerning one embodiment of a lamination bubble sheet with a paper material of the present invention. It is a perspective view which shows the external appearance structure of the laminated bubble sheet with a paper material shown in FIG. It is a perspective view which shows schematic structure which concerns on other one Embodiment of the laminated bubble sheet with a paper material of this invention. It is a perspective view which shows schematic structure which concerns on other one Embodiment of the laminated bubble sheet with a paper material of this invention. It is a perspective view which shows schematic structure which concerns on another one Embodiment of the laminated bubble sheet with a paper material of this invention. It is a perspective view which shows the external appearance structure of the laminated foam sheet with a paper material shown in FIG. It is a perspective view which shows schematic structure which concerns on another one Embodiment of the laminated bubble sheet with a paper material of this invention. It is a perspective view which shows schematic structure which concerns on another one Embodiment of the laminated bubble sheet with a paper material of this invention. It is a perspective view which shows the structure which laminated | stacked the contact bonding layer on the surface of the laminated foam sheet with a paper material shown in FIG. It is explanatory drawing which shows schematic structure which concerns on one Embodiment of the storage bag of this invention, (a) is a front view of a storage bag, (b) is a rear view of a storage bag similarly. It is sectional drawing (AA sectional drawing of FIG. 10) of the storage bag of this invention. It is explanatory drawing which shows schematic structure which concerns on other one Embodiment of the storage bag of this invention, (a) is a front view of a storage bag, (b) is a rear view of a storage bag similarly. It is sectional drawing (BB sectional drawing of FIG. 12) of the storage bag of this invention. It is explanatory drawing which shows typically an example of the manufacturing apparatus of the laminated foam sheet with a paper material which concerns on one Embodiment of this invention. It is explanatory drawing which shows typically an example of the manufacturing apparatus of the laminated foam sheet with a paper material which concerns on other one Embodiment of this invention. It is explanatory drawing which shows typically an example of the bag making process of the storage bag which concerns on one Embodiment of this invention. It is explanatory drawing which shows typically an example of the other bag making process of the storage bag which concerns on one Embodiment of this invention.

  Hereinafter, preferred embodiments of a laminated bubble sheet with paper material and a storage bag according to the present invention will be described with reference to the drawings.

[Configuration of laminated bubble sheet with paper]
1 to 8 are perspective views showing a schematic configuration of a laminated bubble sheet with paper material according to an embodiment of the present invention.
As shown in FIGS. 1 to 8, the laminated bubble sheet with paper 1 of the present embodiment has a laminated bubble sheet with paper 1a in which a mineral powder-containing paper 3 is laminated on one surface of a two-layer bubble sheet 2a. 1b, a laminated bubble sheet 1c with a paper material in which a mineral powder-containing paper 3 is laminated on both sides of a two-layer bubble sheet 2a, and a paper material in which a mineral powder-containing paper 3 is laminated on one side of a three-layer bubble sheet 2b There is a laminated bubble sheet 1f with paper material in which mineral powder-containing paper 3 is laminated on both sides of the laminated bubble sheets 1d and 1e and the three-layer bubble sheet 2b.

  Here, as shown in FIG. 1 and FIG. 2, the laminated bubble sheet 1 a with paper material has a cap film 21 in which a large number of caps 211 that swell in a hollow shape are formed, and a cap opening side of the cap film 21. It is formed as a laminated sheet having a three-layer structure including a double-layered bubble sheet 2 a having a laminated back film 22 and a mineral powder-containing paper 3 laminated on the surface of the back film 22.

The laminated bubble sheet 1b with paper material is formed as a laminated sheet having a three-layer structure in which the mineral powder-containing paper 3 is laminated on the cap bulging side of the cap film 21 of the two-layer bubble sheet 2a, as shown in FIG. .
As shown in FIG. 4, the laminated bubble sheet 1c with paper material is laminated with the mineral powder-containing paper 3 on both sides of the two-layer bubble sheet 2a, that is, both the surface of the back film 22 and the cap bulging side of the cap film 21. It is formed as a laminated sheet having a four-layer structure.

  As shown in FIG. 5 and FIG. 6, the laminated bubble sheet 1 d with paper material includes a cap film 21, a back film 22 laminated on the cap opening side of the cap film 21, and a cap bulging side of the cap film 21. It is formed as a laminated sheet having a four-layer structure including a three-layer foam sheet 2 b having a laminated liner film 23 and a mineral powder-containing paper 3 laminated on the surface of the liner film 23.

As shown in FIG. 7, the laminated bubble sheet 1e with a paper material is formed as a laminated sheet having a four-layer structure in which the mineral powder-containing paper 3 is laminated on the surface of the back film 22 of the three-layer bubble sheet 2b.
As shown in FIG. 8, the laminated foam sheet 1f with paper material has five layers in which the mineral powder-containing paper 3 is laminated on both surfaces of the three-layer foam sheet 2b, that is, both the surface of the liner film 23 and the surface of the back film 22. It is formed as a laminated sheet with a structure.

  That is, the laminated bubble sheets 1a to 1f with paper material have a structure in which the mineral powder-containing paper 3 is laminated on one side or both sides of the laminated bubble sheet 2 (sheet body) composed of the two-layer bubble sheet 2a or the three-layer bubble sheet 2b. Taking advantage of the flexibility and heat retention of the laminated bubble sheet 2 and the translucency or opaqueness of the mineral powder-containing paper 3, it can be used, for example, as a product packaging material or a storage bag 10. it can. The storage bag 10 will be described in detail later in “Storage Bag”.

Further, since the mineral powder-containing paper 3 constituting the laminated bubble sheets 1a to 1f with paper material is translucent or opaque, packaging is performed when the laminated bubble sheets 1a to 1f with paper material are used as wrapping paper, for example. It is possible to make it difficult to visually recognize the finished article from the outside. Therefore, it is possible to provide a wrapping paper having excellent concealment properties.
Furthermore, the user can freely write and print on the surface on which the mineral powder-containing paper 3 is laminated. For this reason, for example, by printing on the mineral powder-containing paper 3 with a desired design, it is possible to provide the laminated bubble sheets 1a to 1f with paper material having excellent design properties.
Moreover, since the mineral powder-containing paper 3 does not produce harmful substances even when incinerated, when the laminated bubble sheets 1a to 1f with paper material are discarded, they can be safely disposed of as combustible garbage.

(Adhesive layer)
The adhesive layer 4 can be laminated on the surfaces of the laminated bubble sheets 1a to 1f with paper material.
The adhesive layer 4 is a layer having an adhesive performance formed in order to stick the laminated bubble sheets with paper 1a to 1f to a desired object. In other words, the laminated bubble sheets 1a to 1f with paper material can be bonded to other objects using the adhesive layer 4 as a medium.
This adhesive layer 4 can be formed on one or both surfaces of the laminated bubble sheets 1a to 1f with paper material. For example, when the mineral powder-containing paper 3 is laminated only on one surface of the two-layer bubble sheet 2a, such as the laminated bubble sheet 1b with paper material, the two-layer bubble sheet in which the mineral powder-containing paper 3 is not laminated. The adhesive layer 4 can be laminated on the other surface of 2a or the surface of the mineral powder-containing paper 3.
In the laminated bubble sheet with paper 1d shown in FIG. 9, the adhesive layer 4 is provided on the surface of the back film 22 in the three-layer bubble sheet 2b.

The adhesive layer 4 can be formed using, for example, a reactive adhesive.
The reactive adhesive refers to an adhesive that reversibly cures and melts by water evaporation and rewetting among water-based adhesives using water as a solvent. The reactive adhesive can be applied to the surface of the mineral powder-containing paper 3 as an adhesive layer 4 and wetted with water when necessary to exhibit liquefaction and exhibit an adhesive function. This reactive adhesive is used, for example, on the back side of stamps.

The adhesive layer 4 can be formed using, for example, an adhesive.
The adhesive is an adhesive having adhesiveness in a normal state, and has a function of adhering objects that are in contact with each other due to the adhesiveness. This pressure-sensitive adhesive is used, for example, on the back side of sticky notes and seals, the adhesive surface of cellophane tape, and the like.

In addition, when a material having high adhesiveness in a normal state is used as a material for forming the adhesive layer 4, it is desirable to provide a release layer (not shown) on the surface of the adhesive layer 4. The release layer is a member (so-called release paper or the like) obtained by performing release processing on the surface of a substrate such as paper. By laminating this release layer, it is possible to protect the adhesive layer 4 and avoid a situation in which the laminated bubble sheets 1a to 1f with paper material are erroneously adhered to locations other than the desired locations.
In addition, as a specific example of the material for forming the adhesive layer 4, a reactive adhesive or a pressure sensitive adhesive is used here, but the material for forming the adhesive layer 4 is not limited to the reactive adhesive or the pressure sensitive adhesive. Any conventionally known suitable material having an adhesive function can be used.

[Material of laminated bubble sheet with paper]
Next, the material of the laminated bubble sheets 1a to 1f with paper material will be described.
As described above, the laminated bubble sheets 1a to 1f with paper material have a configuration in which the laminated bubble sheet 2 and the mineral powder-containing paper 3 are laminated.
Here, as a material of the laminated bubble sheet 2, polyolefin containing polyethylene (PE) or polypropylene (PP) can be used.
Moreover, when forming the laminated bubble sheet 2 using a polyethylene film, as a polyethylene-type resin used as the material of the polyethylene film which comprises the laminated bubble sheet 2, high density polyethylene (HDPE), low density polyethylene (LDPE), Examples include linear low density polyethylene (LLDPE), linear ultra-low density polyethylene (LVLDPE), and ethylene-vinyl acetate polymer. Further, these materials may be arbitrarily mixed and used.
Furthermore, the resin composition used as the material for the polyethylene film includes lubricants such as non-halogen higher fatty acids, higher aliphatic amides, metal soaps, glycerin esters, etc., depending on the use of the laminated bubble sheets with paper 1a to 1f. Anti-blocking agents, antioxidants such as phenolic, phosphorus, and BHT, UV absorbers such as benzophenone, benzotriazole, and HALS, inorganic and organic fillers such as talc, diatomaceous earth, and mica, antistatic agents, and surfactants Etc. can be added.

The mineral powder-containing paper 3 is an inorganic mineral powder such as calcium carbonate extracted from natural stone (that is, a mineral limestone powder), which is a synthetic resin in a smaller amount than the inorganic mineral powder and has no toxicity ( For example, it is formed in a film shape via a high-density polyethylene (HDPE) resin or the like.
Here, the composition ratio of the mineral powder-containing paper 3 can be, for example, about 80 to 50% for the inorganic mineral powder, about 18 to 48% for the synthetic resin component, and about 2% for the additive. Preferably, the inorganic mineral powder is about 80%, the synthetic resin component is about 18%, and the additive is about 2%. Further, the inorganic mineral powder may be about 58%, the synthetic resin component may be about 40%, and the additive may be about 2%.

In addition, an ink adsorption layer can be formed on one side or both sides of the mineral powder-containing paper 3 by a coating process. For the ink adsorption layer, a material capable of improving ink absorbability and pigment adhesion is used.
Since the ink adsorbing layer is coated, ink loading and drying properties are improved on this surface, and printing by various printing methods such as offset printing with water, offset printing without water, and UV offset printing is possible. Become. In addition, direct writing can be performed using a writing instrument in which water-based ink, graphite, or other pigments are attached and written.

Thus, the mineral powder-containing paper 3 has the highest content of the inorganic mineral powder component, and the content of the synthetic resin component is smaller than the content of the inorganic mineral powder component. In particular, since the rigidity can be increased by increasing the content of the synthetic resin component, it is strong without being easily damaged even when bent.
As the mineral powder-containing paper 3, for example, stone paper can be used.

The above-described laminated bubble sheets 1a to 1f with paper material can be used in the form of a sheet, but the laminated bubble sheets 1a to 1f with paper material are used as a storage bag 10 formed in a bag shape or an envelope shape, for example. You can also
Next, the configuration of the storage bag 10 will be described with reference to FIGS.

[Storage bag]
As shown in FIGS. 10 to 13, the storage bag 10 according to the present embodiment is a bag that is processed into a bag shape using the laminated bubble sheets 1 a to 1 f with paper material.
10 (a), 10 (b), and 11 show a storage bag 10 formed using a laminated bubble sheet 1b with paper material. 12 (a), 12 (b), and 13 show a storage bag 10 formed using a laminated bubble sheet 1c with paper material. The laminated bubble sheets 1a, 1d to 1f with paper material other than the laminated bubble sheets 1b, 1c with paper material can be formed as the storage bag 10 in the same manner as the laminated bubble sheets 1b, 1c with paper material.

The entire bag body 11 of the storage bag 10 is formed of the laminated bubble sheets 1a to 1f with paper material to constitute the main body of the storage bag 10.
Specifically, the bag main body 11 is formed in a bag shape, an envelope shape, or the like having a storage space 11a in which the laminated foam sheets 1a to 1f with paper materials can store predetermined storage items. An opening 11b is formed on the upper side of the drawing.
The opening 11b communicates the storage space 11a of the bag main body 11 with the outside of the bag main body 11, and a predetermined stored item can be taken into and out of the storage space 11a through the opening 11b.

The laminated bubble sheets 1a to 1f with paper material constituting the storage bag 10 are laminated with translucent or opaque mineral powder-containing paper 3 on the surface. For this reason, it is difficult to visually recognize the stored items stored in the storage bag 10 from the outside. Therefore, it is possible to prevent leakage of information related to the stored items and provide the storage bag 10 having excellent concealment.
Further, by forming the storage bag 10 using the laminated bubble sheets 1a to 1f with paper material so that the mineral powder-containing paper 3 laminated on the laminated bubble sheets 1a to 1f with paper material is located on the inner surface ( 11 and 13), since the cap film 21 does not directly contact the surface of the stored item stored in the storage bag 10, the trace of the cap 211 of the cap film 21 being pressed remains on the surface of the stored item. Can be avoided.

Furthermore, by forming the storage bag 10 using the laminated bubble sheets 1a to 1f with paper material so that the mineral powder-containing paper 3 laminated on the laminated bubble sheets 1a to 1f with paper material is located on the outer surface. (Refer to FIG. 13) On the surface of the storage bag 10, the user can freely write and print. For this reason, for example, the storage bag 10 excellent in design can be provided by printing on the surface of the storage bag 10 with a desired design.
Moreover, since free writing is possible on the surface of the storage bag 10, for example, by describing the name of the storage item on the surface, the utility and usefulness of the storage bag 10 can be improved, It can be used as a convenient storage bag 10.
Further, since the mineral powder-containing paper 3 does not produce harmful substances even when incinerated, when the storage bag 10 is discarded, it can be safely disposed of as combustible garbage.

10 (a), 10 (b), and 11 show a storage bag 10 formed using a laminated bubble sheet 1b with paper material, in which the mineral powder-containing paper 3 is stacked only on the inner surface. Although the bag 10 is shown, the storage bag 10 by which the mineral powder containing paper 3 was laminated | stacked only on the outer surface can also be formed by using the laminated bubble sheet 1b with a paper material, for example. Similar to this, the storage bag 10 in which the mineral powder-containing paper 3 is laminated only on one of the outer side surface or the inner side surface can be formed using the laminated bubble sheets 1a, 1d, and 1e with paper material.
12 (a), 12 (b), and 13 show a storage bag 10 formed using a laminated bubble sheet 1c with paper material, and the mineral powder-containing paper 3 is provided on both the outer surface and the inner surface. Although the laminated storage bag 10 is shown, the storage bag 10 in which the mineral powder-containing paper 3 is laminated on both the outer side surface and the inner side surface is formed by using, for example, a laminated bubble sheet with paper material. You can also.
10 to 13, the storage bag 10 is formed in a flat envelope shape. However, the shape is not limited to this shape. For example, the storage bag 10 may be formed in a square bottom envelope shape with a gusset. Good.

[Method for producing laminated bubble sheet with paper material]
Next, a manufacturing method of the laminated bubble sheets 1a to 1f with paper according to the present embodiment will be described with reference to FIG.
This figure is an explanatory view showing a configuration of a manufacturing apparatus 50a for a laminated bubble sheet 1d with paper material, which is an example of a manufacturing apparatus for the laminated bubble sheets 1a to 1f with paper material.

Here, the laminated bubble sheet with paper 1d produced by the production apparatus 50a is obtained by laminating the mineral powder-containing paper 3 on the three-layer bubble sheet 2b as shown in FIG.
As an example of the material of each layer of the three-layer bubble sheet 2b in the laminated bubble sheet with paper 1d, for example, the following materials can be used, but the invention is not limited thereto.
Cap film 21: about 30% HDPE, the rest being LDPE and / or LLDPE
Back film 22: about 30% HDPE, the rest being LDPE and / or LLDPE
Liner film 23: LDPE and / or LLDPE

The manufacturing apparatus 50a includes three flat dies 51 to 53, an original fabric 54 of the mineral powder-containing paper 3, a forming roll 55, and five pressing rolls 56 to 60.
The three flat dies 51 to 53 are continuously supplied with the flat cap film 21, the back film 22, and the liner film 23 by extruding the above-described resin material with a predetermined thickness.
The raw fabric 54 continuously supplies the mineral powder-containing paper 3.

The flat cap film 21 supplied from the cap film flat die 51 is supplied to the forming roll 55.
The forming roll 55 is provided with a large number of cavity holes 551 on the outer peripheral surface.
Each cavity hole 551 is connected to a vacuum pump (not shown), and a large number of caps 211 that swell in a hollow shape are formed in the cap film 21 by vacuum suction of the cavity hole 551.

The cap film 21 on which the cap 211 is formed is laminated between the forming roll 55 and the pressing roll 56 with the back film 22 supplied from the flat die 52 for back film, and is integrated by thermal fusion.
Next, the liner film 23 supplied from the liner film flat die 53 is laminated on the cap bulging side of the cap film 21 between the pressing roll 57 and the pressing roll 58 and integrated by thermal fusion. .
Subsequently, the mineral powder-containing paper 3 supplied from the raw fabric 54 is bonded to the surface of the liner film 23 between the pressing roll 59 and the pressing roll 60 via an adhesive or the like.
Thereby, the laminated bubble sheet 1d is obtained.
When the mineral powder-containing paper 3 is bonded to the surface of the liner film 23 with an adhesive, the adhesive is applied to one or both of the mineral powder-containing paper 3 and the surface of the liner film 23.

A manufacturing apparatus 50a shown in FIG. 14 is an apparatus for manufacturing the laminated bubble sheet with paper 1d having the structure shown in FIG. 5. For example, the laminated bubble sheet with paper having the structure shown in FIG. 1a can be manufactured by the manufacturing apparatus 50b shown in FIG. The configuration of the manufacturing apparatus 50b is obtained by recombining each configuration of the manufacturing apparatus 50a as a manufacturing apparatus 50b for the laminated bubble sheet 1a with paper material. The functions and operations of the respective configurations of the manufacturing apparatus 20b are basically the same. Since the function and operation of each component of the manufacturing apparatus 50a are the same, the description thereof is omitted here.
The laminated bubble sheets 1b, 1c, 1e, and 1f with paper shown in FIGS. 3, 4, 7, and 8 are basically the same as the configurations of the manufacturing apparatuses 50a and 50b. Can be used.

[Method of manufacturing storage bag]
Next, a method for manufacturing the storage bag 10 according to the present embodiment will be described with reference to FIG.
FIG. 16 is an explanatory diagram illustrating an example of a bag making process of the storage bag 10 according to the present embodiment.
The storage bag 10 is manufactured by the following procedure.
As shown in the figure, the laminated bubble sheet 1 (1a to 1f) with a paper material in an original fabric state is folded in half, and the portions which are both side portions of the storage bag 10 are heat sealed by a seal bar 70. The heat seal portion is cut to form a bag, thereby completing the storage bag 10.

In addition, as shown in FIGS. 17A to 17C, the storage bag 10 is also formed by stacking two laminated bubble sheets 1 with the same rectangular shape and heat-sealing three sides. be able to.
In the storage bag 10, the end portion that is not heat-sealed becomes the opening 11b ((c) in the figure).

As described above, according to the laminated bubble sheet with paper material and the storage bag of the present embodiment, the storage bag is formed using the laminated bubble sheet with paper material on which the mineral powder-containing paper is laminated. By positioning the mineral powder-containing paper on the inner surface, the cap film does not come into direct contact with the surface of the stored item, so that the trace of the cap pressed on the surface of the stored item can be prevented from remaining.
Further, since the mineral powder-containing paper is translucent or opaque, it is difficult to visually recognize the stored item from the outside of the storage bag. Therefore, it is possible to provide a storage bag with excellent concealment.

Furthermore, the user can freely write on the surface of the laminated bubble sheet with paper on which the mineral powder-containing paper is laminated. Therefore, it is possible to provide an easy-to-use laminated bubble sheet with paper material and a storage bag that can be used effectively in various situations.
Moreover, since mineral powder-containing paper does not produce harmful substances even when incinerated, it can be safely disposed of as combustible waste.

The preferred embodiments of the laminated bubble sheet with paper material and the storage bag of the present invention have been described above, but the laminated bubble sheet with paper material and the storage bag according to the present invention are not limited to the above-described embodiments, It goes without saying that various modifications can be made within the scope of the present invention.
For example, in the above-described embodiment, it is assumed that the laminated bubble sheet of the laminated bubble sheet with paper material is transparent, but it is not limited to transparent, and may be translucent or opaque. The same applies to the laminated bubble sheet with paper material constituting the storage bag.

  INDUSTRIAL APPLICABILITY The present invention is applied to a storage bag formed using a laminated bubble sheet, and is particularly suitable for a storage bag used for storage and delivery of a desired article such as a buffer envelope. It can also be used widely in bags.

1 (1a-1f) Laminated foam sheet with paper material 2 Laminated foam sheet (sheet body)
2a Two-layer cell sheet 2b Three-layer cell sheet 21 Cap film 211 Cap (bubble)
22 Back film 23 Liner film 3 Paper containing mineral powder 10 Storage bag

Claims (7)

A sheet body having a large number of bubbles bulging in a hollow shape;
With mineral powder-containing paper laminated on one or both sides of this sheet body,
A laminated bubble sheet with a paper material, wherein the mineral powder-containing paper is a paper mainly composed of mineral powder and containing a synthetic resin. The laminated bubble sheet with paper material according to claim 1, wherein the mineral powder is calcium carbonate. The sheet body is composed of a two-layer laminated bubble sheet comprising a cap film having a large number of caps that bulge in a hollow shape, and a back film laminated on the cap opening side of the cap film,
The laminated bubble sheet with paper material according to claim 1 or 2, wherein the mineral powder-containing paper is laminated on one side or both sides of the two-layer laminated bubble sheet. A cap film having a large number of caps in which the sheet main body bulges in a hollow shape, a back film laminated on the cap opening side of the cap film, and a liner film laminated on the cap bulging side of the cap film A three-layer laminated cell sheet comprising
The laminated bubble sheet with paper material according to claim 1 or 2, wherein the mineral powder-containing paper is laminated on one side or both sides of the three-layer laminated bubble sheet. A storage bag formed in a bag shape,
The said storage bag was formed using the laminated bubble sheet with a paper material in any one of the said Claims 1-4. The storage bag characterized by the above-mentioned. Using the laminated bubble sheet with paper material in which mineral powder-containing paper is laminated only on one side, the storage bag is formed,
The storage bag according to claim 5, wherein the mineral powder-containing paper is laminated on one of an outer surface and an inner surface of the storage bag. The storage bag is formed using the laminated bubble sheet with paper material on which the mineral powder-containing paper is laminated on both sides,
The storage bag according to claim 5, wherein the mineral powder-containing paper is laminated on both an outer surface and an inner surface of the storage bag.

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